CVE-2017-18640
moderate-risk
Published 2019-12-12
The Alias feature in SnakeYAML before 1.26 allows entity expansion during a load operation, a related issue to CVE-2003-1564.
Do I need to act?
~
2.2% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.5/10
High
NETWORK
/ LOW complexity
Affected Products (7)
Affected Vendors
References (118)
Third Party Advisory
https://bitbucket.org/asomov/snakeyaml/wiki/Billion%20laughs%20attack
Release Notes
https://bitbucket.org/snakeyaml/snakeyaml/wiki/Changes
and 98 more references
45
/ 100
moderate-risk
Severity
26/34 · High
Exploitability
5/34 · Minimal
Exposure
14/34 · Moderate